What is O2 Phone Number?

O2 Phone Number is:
0344 8090202

Save this number under: “O2 Phone Number”

O2 Opening Hours

Sunday: 8.00-18.00. Monday: 8.00-21.00. Tuesday: 8.00-21.00. Wednesday: 8.00-21.00. Thursday: 8.00-21.00. Friday: 8.00-21.00. Saturday: 8.00-20.00

Services Offered by O2

O2 is one of the leading telecommunications company in the United Kingdom. The company is proud to have the highest customer satisfaction among the other mobile service providers nationwide. Over 23 million customers are provided with network connections such as 2G, 3G and 4G. With over 450 branches nationwide, everyone can shop O2 talk, text and data plans along with the latest mobile phones and gadgets. The O2 phone number is also open every day to extend support to their valued customers.

O2 Help and Support

The Help and Support page of the O2 website may save you from using your phone and dialing the O2 phone number right away. On the page, you will find the best answers to any question you may presently have. Questions are categorized into topics: bills and payment, upgrades, pay and go, phones and devices, network and coverage, products and services, help with your SIM and everything else.

If you have a faulty device, you may want to check the O2 “Fix my device” section by going to this site. You may also access real-time info about the network info in your area when you are having signal problems. Just click here to see the O2 live status updates.

The O2 Community is also a great source of information as experts and customers discuss basic troubleshooting guides, tips and service updates for a better experience.

In case you cannot find the answer to your question in the Help and Support page, you may start a live chat with one of AT&T’s skilled representatives. To start a live chat, please go to this page.

O2 Phone Number to Call for Further Assistance

If you prefer to call O2 for assistance, there is always a specific O2 phone number you can dial to get to the right O2 customer service department. If you wish to speak to the Pay Monthly team, please call 202 from your O2 mobile or 0344 8090202 from your landline. If you have enquiries regarding Pay & Go, please call 4445 from your O2 mobile and 0344 8090222 from your landline. If you wish to reach the Business customer service, please call 8002 from your O2 mobile or 0800 977 7337 from your landline. O2 phone number to call for Online Business is 8002 for O2 mobile and 0800 977 7027. If you need to contact O2 mobile broadband support team, please call the normal O2 phone number customer service for support.

Get in Touch with O2

Aside from calling the O2 phone number for help, there are also different ways to get in touch with the O2 customer service experts. If you prefer to send a letter to O2 about your concern, please mail it to:

Telefónica UK Limited

Correspondence Department

PO Box 202

Houghton Regis


You may also want to follow O2’s social media accounts for the latest updates and even discounts about their products and services. Click here to get to the official Facebook page of O2. You may also want to follow them on Twitter. You may also use the store locator to see and visit an O2 branch near you.


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